Collecting the keys to a new BTO is exciting, and then the questions start. How much should you actually set aside to renovate it? After renovating hundreds of new flats across Singapore, we can tell you the honest answer: most BTO renovations land somewhere between $25,000 and $60,000, and the biggest reason for the spread is carpentry, not tiles or paint.

Here is how the numbers tend to break down in 2026, and where your money really goes.

Typical BTO renovation cost by flat type

These are general market ranges for a new BTO (which needs far less structural work than a resale flat), assuming a mid-range specification.

A new BTO comes with floor and wall tiles, a basic kitchen and sanitary fittings already in place, so you are usually paying to personalise rather than rebuild. That is why a BTO costs so much less than a resale flat of the same size.

Where the money actually goes

In almost every BTO we design, the budget splits roughly like this:

• Carpentry (about 40 to 55%) — kitchen cabinets, wardrobes, TV console, feature shelving. The single largest line item, and the easiest place to overspend.
• Masonry and tiling (about 10 to 15%) — feature walls, vanity or bed platforms, any tile overlays.
• Electrical and lighting (about 8 to 12%) — additional power points, lighting layout, data points.
• Painting (about 5 to 8%) — full-unit painting in your chosen colours.
• Plumbing, glass, light hacking and miscellaneous — the remainder, including hauling, protection and post-renovation cleaning.

What is usually not included

Homeowners are often caught out by these, so budget for them separately:

• Loose furniture, mattresses and soft furnishings
• Major appliances (fridge, washer, oven, hob and hood, if not in your package)
• Curtains, blinds and lighting fixtures
• Air-conditioning, if not bundled

How to renovate a BTO without overspending

From what we see, the couples who stay on budget do three things:

1. Prioritise carpentry by daily use. Spend on the kitchen and the wardrobes you open every day; hold back on decorative carpentry you can add later.
2. Plan electrical points before hacking starts. Moving a socket afterwards is expensive and avoidable. See our electrical and plumbing checklist.
3. Get an itemised quote, not a lump sum. A clear, line-by-line quotation shows exactly what a package covers and where you can trim.

A fixed BTO renovation package can also keep costs predictable, since the scope and price are agreed upfront.

The bottom line

A realistic 2026 BTO renovation budget is around $30,000 to $50,000 for most 4 and 5-room flats done to a comfortable mid-range standard. The number moves mostly with how much custom carpentry you choose, so that is the lever to pull if you need to fit a budget.

Frequently asked questions

How much does it cost to renovate a 4-room BTO in Singapore?

Most 4-room BTO renovations cost around $25,000 to $50,000 in 2026, depending mainly on how much custom carpentry you include.

Is it cheaper to renovate a BTO or a resale flat?

A BTO is significantly cheaper, because it comes with tiles, a basic kitchen and fittings already installed. Resale flats often need hacking and replacement, which adds cost.

What is the most expensive part of a BTO renovation?

Carpentry, usually 40 to 55% of the total. Kitchen cabinets and wardrobes are the biggest contributors.